中国物理B ›› 2012, Vol. 21 ›› Issue (4): 45101-045101.doi: 10.1088/1674-1056/21/4/045101

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

宋渤,王晓坡,杨富鑫,刘志刚   

  • 收稿日期:2011-07-07 修回日期:2011-07-26 出版日期:2012-02-29 发布日期:2012-02-29
  • 通讯作者: 王晓坡,wangxp@mail.xjtu.edu.cn E-mail:wangxp@mail.xjtu.edu.cn

Transport properties of a binary mixture of CO2–N2 from the pair potential energy functions based on a semi-empirical inversion method

Song Bo(宋渤), Wang Xiao-Po(王晓坡), Yang Fu-Xin(杨富鑫), and Liu Zhi-Gang(刘志刚)   

  1. Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
  • Received:2011-07-07 Revised:2011-07-26 Online:2012-02-29 Published:2012-02-29
  • Contact: Wang Xiao-Po,wangxp@mail.xjtu.edu.cn E-mail:wangxp@mail.xjtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51006083), the China Postdoctoral Science Foundation (Grant No. 20110491658), and the Fundamental Research Funds for the Central Universities.

Abstract: The potential energy surface of a CO2-N2 mixture is determined by using an inversion method, together with a new collision integral correlation [J. Phys. Chem. Ref. Data 19 1179 (1990)]. With the new invert potential, the transport properties of CO2-N2 mixture are presented in a temperature range from 273.15 K to 3273.15 K at low density by employing the Chapman-Enskog scheme and the Wang Chang-Uhlenbeck-de Boer theory, consisting of a viscosity coefficient, a thermal conductivity coefficient, a binary diffusion coefficient, and a thermal diffusion factor. The accuracy of the predicted results is estimated to be 2% for viscosity, 5% for thermal conductivity, and 10% for binary diffusion coefficient.

Key words: inversion method, potential energy surface, CO2-N2 mixture, transport property

中图分类号:  (Kinetic and transport theory of gases)

  • 51.10.+y
52.25.Fi (Transport properties) 31.50.-x (Potential energy surfaces) 34.20.-b (Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions)